Improved machine for making hot-pressed nuts



3 Sheets-Sheet 1.

L THIERRY 85 6.713.' HILL. MACHINE FORv MAKING HOT PRESSED NUTS.

No. 66,414. Patented July 2, 1867.

3 Sheets-Sheet 2. 4L. THIERRY 8v Gr. B. HILL.

MACHINE POR MAKING HUT PRESSED NUTS.l No. 66,414. Patented July 2, 1867.

3 Sheets-Sheet 3.

L. THIERRY s. G. B. HILL. MACHINE FOR MAKING HOT PRESSED NUTS.

No. 66,414. Patented July z, 1867.

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l @uiten tetes vgetraut" @ffi `LEWIS THIERRY AND GEORGE B. HILL, oF DETROIT, MICHIGAN.

` `Letters Patent No. 66.414, dated July 2, 1867. u

IMPROVBD MACHINE FOR MAKING HOT-PRESSED NUTS.

. TO AIL W HOM I T MAY CONCERN:

Be it known that we, LEWIS THIERRY and GEORGE B. HILL, of Detroit, lin the county of. Wayne, and State of Michigan, have invented a new and useful improvement in Machinery for Making Hot-Pressed Nuts; and we do hereby declare that the following is o full, clear, and y exact description thereof, which will enable others skilled in thenrt to make and use the same, Vreference being had to thc accompanying drawings, forming' part of this specification, in-which-f- Figure' 1, Sheet 1, is a front elevation of an improved machinelfor making hot-pressed nuts. Figure 2, a vertical longitudinal section taken on the line :I: a', tig. 6. Figure 3, a vertical longitudinal section-takenin the line y y, iig. 5.- Figure 4, Sheet4 2, a vertical transverse section taken in the plane of the line a: z, iig. 1. Figure 5, Sheet 3, a plan with the standards B B cutv oFF, in the line z zffig. 1. Figure 6, a partial plan. u Figure 7, s detail showing-the gnide-block arrangement for 4cutting square nuts. Similar letters of' reference indicate like parts.

This invention relates to improvements in machinery for the manufacture of hot-pressed nuts, `n nd consists i of devices forcutting from the heated iron bar hexagonal, octagonal, or quadrilateral blanks, and by an automatic slide moving the blanks over a'die and under a punch, which punches out the centre hole for the screw, the whole operation of cutting oif the blanks and punching the. holes being continuous, and performed with great 'rapid-ity, allowing'a whole bar of heated iron to he fed into the machine and converted into blank nuts without intermission or u second heating, and without waste of material, except the core from the hole.

A is a strong cast-iron frame or bed, resting on suitable supports, at oneend of which are heavy standards,

`B B,Ipl aced on opposite sides of the bed-plate. C C Cz are three shafts, in gear connection with each other by the spurwhee1s l) Dl D? on their ends respectively, and the intermediate pinion E', receiving their motion from the pinion F, on the driving-shaft G. 'The shafts Cl C2, placed ncrossopposite ends of the bed A, operate right and left slides, working'to a centralvtronsverse line, with V-pointed steel cutters, and with clamps construct'ed alike, and-facing euch other, operated simultaneously by cams on the shafts C"C2`-for the purpose of` cutting o' thenuts from the bar of iron, and clamping them while theyl sre'punched. The cutters al a2 arc actuated by the conos-Z1l and the clamps c c2 by the cams di 'on the shafts-@C1 Cz respectively. 5 The cams push them forward horizontally to the work, and the' springs e" e2 are connected with them, respectively, for drawing them back after performing their work. But this retrograde movement of the cutters and the clamps may be effected by other devieesthan springs more positively, land they are .employed merelyto exhibit the mode of their operation. A horizontal slide-bar, I, works across thc bed of the machinerfrom the front side, by means of a side lever, z,.nttached to it at one end'and operatedon at the other end by aside cam, z', placed on the. front end of .the shaft` Cl. A. spring, k,.`throws thel lever back, and withdraws the slide af'ter it has carried forward a nut, which hasI been cut by the cutters a Ia t place it upon the die m, to be punched as hereinafter described. The die m is connected by the arm-m1 with one end of a. side l'ever, n, the other end of which lever is moved by a side cam, nl, on the shaft C, inside of thespur-whcel D1, for drawing the die m out to discharge the nut after the holehos been punched in it, and a. spring, n, acts on therlever n to push the die -m back to its place to receive ano-ther blank nut ready for punching. Directly over the die mis a hollow plunger, p, which works vertically .in the box H, for `the purpose of clamping the nut on the die m, and holding it while it is punched by a round punch, s, that works inside` of the hollow plunger. On the lower end of the hollow plunger p is o. cupped block, p', for the purpose ci' bevalling the top of the' nut. The hollow plungerp and the interior punch s are worked simultaneously by a double-faced cam, q, placed aboveon the shaft C, which cam operates in such manner that the plunger first moves down and clamps upon the nut as it lies on the die m, .to give, the impression with the cup at the bottom, to bevel the mit, while the punch follows 'immediately after, and punches out the core in the nut through the die m; and ,on ,theA return movement Ithe plunger continues to hold the nut while the punch is withdrawn from it. Tbe'die rn is drawn from under the bottom of the plunger p, while it still bears upon-it slightly, and thus cuts o the bur formed on ,the lower side of the hole in the nut 'when punched, and as soon as the die m withdraws. the punched blank falls through the bed.

The operation of the machine is as follows, to wit: When the machine is in motion the en'd of a bar of hot iron is introduced over the sliding-bar 7L, and is pushed in until the end strikes' the clamps cI c, while they are closed, so -that they act as a gauge for the nut when cut o by the cutters al a, which are moved up instantly by tbe-cams b buon the shafts Cl C2. As soon as the blank nut is cnt o the slide-bar L movesv up and pushes.

theblnnk forward upon' the die m, which takes its place under the plunger? at the same time, while also the clamps c c2 recede simultaneously to allow the slide h to push the blank upon the die m, the several parts being operated by their respective cams, as hereinbefore described. The moment the blank is placed on the die m, the plungerp comes down, and the cup p bears upon the blank and bevels its upper side, while, by a simultneous moement, the clamps c c" move up to thenut and hold it firmly inv place; then the punch s descends and punches out the hole in the blank nut. The same operation before described is repeated by pushing up the bar of iron against the clamps c c", while they are in this position, and so soon us the hole is punched in the blank nut, the punch e rises, and the cup p releases the nut sufficiently to allow the die m to be drawn back by the cam nl to eut off the bur on the underside, and let the finished nut drop through un opening inthe bed-plate. Having described our invention audits operation, we do claim as new, and desire to secure ,by Letters Patent- The combination ofthe die, clamps, cutters, slides, hollow plungcis. und centre punch, orequivalents, con'- structed and .arranged substantially es described.

LEWIS THIERRY,

GEO. B. HILL.

Witnesses:

Josnrn KUHN, PETER G. Koerr4 

